Refrigerating-ch amber



(No Model.)

v w. SCOTT- REPRIGERATING CHAMBER.

No. 244,676. Patented July 19,1881.

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UNITED STATES PATENT OF ICE.

WILLIAM sooTT, on MALDFN, ASSIGNOR To JAMES ALEXANDER, OF

- BOSTON, MASSACHUSETTS.

REFRIGERATING-CHAMB 'ER.

SPECIFICATION forming part of Letters Patent No. 244,676, dated July 19, 1881.

Application filed May 27, 1881.

To all whom it may concern:

Be it known thatv I, WILLIAM SooT of Malden, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Refrigerating- Oharnbers, of which the following is a full, clear, and exact description.

As well known, forthe preservation of fresh meats and other perishable articles of food, &c., for any-considerable length of time, three elements are absolutely essential, to wit: first, a low and uniform temperature within a practically air-tight compartment; second, a surface or surfaces for the condensation of vapors contained in the air of the compartment, and which are more or less evaporated from the fresh meats, 8m; third, an automatic circulation, diffusion, and movement of the inclosed air.

To obtain these several results under this invention the refrigerating-chamber has its walls constructed of the material and materials usually used for r such purpose, because they are the poorest, if not absolutely, nonconductors of heat; and within such chamber, which in any suitable'manner is made 'airtight, but adapted to be communicated with as may be desiredr-as,f for instance, with a door opening to the samcthere is arranged at its opposite ends or sides, or' at both its opposite ends and sides, ice boxes or receptacles. Theseice-boxes exteriorly have either one or more of their sides made of corrugated metal or of other suitable material, constructed and arranged to have vertical passages between them, which are closed along their length,but open at their upper and lower ends, all substantially as hereinafter described.

In addition to the above, this invention also consists of improvements in details, which will hereinafter appear.

In the accompanying plate of drawings this invention is illustrated as applied to a box freight railway-car, Figure 1 being a horizontal section of a refrigerating-chamber constructed according thereto; Fig. 2, a vertical longitudinal section on line a: m, Fig. 1 Fig. 3, a vertical cross-section on line y y, Fig. 1; Figs. 4 and 5, sectional views, showing modifications in detail; and Fig. 6, a detail sectional view, to be hereinafter referred to.

(No model.)

In the drawings,A represents a box freight railway-car of the usual construction, and for the purposes of refrigeration made, as to its outer walls, of materials and in any of the wellknown modes of construction, to secure as nearly as possible an absolute non-conduction of" heat from the outside to the inside and of cold from the inside to the outside of the chamber.

- B Bare two ice boxes or receptacles, placed one at each end of the ear. These boxes, in addition to any ordinary construction of wood or of other materials, as boxes for the reception of ice, and for strength and service in such use, each have one or more of its side walls provided with an upright wall, a, of corrugated sheet metal, or of other material. The corrugations b run in vertical lines, and they are open at each end to the refrigeratingchamber proper, O, and exteriorly they are covered by another vertical partition or plate, 1), which may be either plain or corrugated, which, together with the corrugated side a, of

the ice-box, make vertical air passages or chambers d between the two for the circulation of air, as will hereinafter appear. These ice-tanks preferably are to be made of sheet metal, suitably stiffened, if necessary, and all so as to obtain the greatest amount of cooling-surface within a given space, and at the same time secure a wall capable of withstand ing the pressure both from within and without the ice-tank. The ice-tank, if large, may be stiflened interiorly by a wooden or other frame, and in whatever way the tanks are made it is plain that the outside plate, D, adds great strength and stability thereto. Theice-tanks, exteriorly provided with air-passages, as above described, obviously contain all the essential elements for cooling, drying, and circulating air, forreasonsasfollows: That the corrugated sides expose a large amount of cooling-surface to absorb the heat and condense the moist ure in the air which comes from the refriger ating-ca nber and into contact with them, and thus the air, being deprived of its heat, is made to descend through the vertical passages, and-thereby a circulation of air is created and maintained from the top to the bottom of thefeet refrigeration in the refrigerating-chamber proper, O. A trough, E, is located at the lower open end of each of the corrugated sides to receive the drippin gs of moisture condensed thereon, and this trough is provided with a suitable outlet, 0, for such drippings to pass off to the outside of the car.

F is a standing waste-pipe arranged in the icetank for the outflow of the water from the melting ice, and secured thereto by screwing it into a socket, g, in the bottom of the tank. This pipe is closed at its upper end by a cap, f, which projects beyond the sides of the pipe F, as at h, and below such cap the pipeis perforated, the projecting part h of the cap preventing all possibility of its water passage or escape being closed by the surrounding ice. The standing waste-pipe Fis capable of being attached and detached, if desired, and as is obvious by an inspection of Fig. 6.

In Figs. 4 and 5 two of my improved icetanks are shown as arranged side by side, the contiguous or adjoining corrugated sides of the two tanks making vertical air-passages m at such sides of each tank. When tanks are so combined a hinged lid or cover, G, is arranged at the upper end, so that the same may be closed to prevent pieces of ice from enterin g such vertical passage at when either tank is being filled, and also to allow such vertical passages to be closed to the passage of air through them should it be found desirable to lessen the amount of cooling-surface, and thus arrest or limit the circulation of air within the retrigerating-chamber, as desired.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-- 1. A refrigerating-chamber, G, in combination with an ice tank or tanks suitably constructed for the reception of ice, and exteriorly upon either one or more or all of its sides provided with a corrugated sheet, a, and an exterior sheet, D, having vertical air-passages between them, which. are open at each end, all substantially as described, for the purpose specified.

2. 1n ice-tanks, the waste-pipe F, closed by an overlapping cap, f, and provided with perforations in its sides, all substantially as described, for the purpose set forth.

3. The combination of two ice-tanks of a construction described, arranged side by side, with a lid or cover, Gr,for closing the passages m between them, all substantially as described, for the purpose specified.

4. In combination with an ice-tank a standing waste-pipe, F, arranged to be attached and detached, substantiallyas and for the purpose described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM SCOTT.

\Vitnesses:

EDWIN W. BROWN, WM. G. BELLOWS. 

